Have you added any coolant recently?  It seems to me that this could
indicate too high a antifreeze/water ratio...  (since conductivity/heat
capacity would be lower).

Good luck,
Wes

Mathieu Bertrand wrote:

> My 87 2.1l is running hot. By hot I mean that the temp. needle is just
> above the led. When I go up hills I have to put the front heater on to
> keep the needle around the led.
>
> How can I tell if it is the thermostat, waterpump, air in the system
> or even a faulty temp sensor or gauge?
> Is it OK to run at this temperature? My 86 2.1l never ran hot.
>
> Thanks
>
> Mat